So it seems to be escalating. The Kyle Incident is the perfect shitshow because any random hundred people will have a hundred different reasons to be angry about it and they're all understandable and justified. If literally any one of the people, from Kyle to his family to the police to the people chasing him, had stopped and said "wait a second, let's not do this" things would not have been such a shitshow.
Also interesting is that everyone involved in the past two shootings except for Kyle himself has some kind of violent legal trouble on their record, if not full-on felony convictions. That also goes for the shooter and victim in the Patriot Prayer shooting (between the five of them, domestic abuse, sexual assault of a minor, and a big pile of minor offenses including some firearms stuff). Going by some of the videos and classmate anecdotes that have come up afterward, Kyle was also a generally violent person, just too young to have himself a record yet. Dunno what the full implications are there, aside from further confirming Lonnie Athens was right and violent crime is the exclusive purview of violent people (Sounds obvious when you put it like that, but how many times have you heard about violent criminals who "just snapped" and "seemed like a regular guy?" That never happens, there's always something behind the curtain.)
It also suggests something about the idea I've seen going around that Kyle was brain-poisoned by Trump and memed into ruining his own life. Both of those things are true of course, but from what I've read Kyle was already known for constantly trying to start fights for various reasons, and there's a video of him sucker punching a woman. He was already on his way.
It does reassure a bit that we haven't crossed some rubicon towards civil war. Serious violence at the protests is still the domain of people who were already predisposed to violence with or without the political context.